This paper contains a new format for analytic tableaux, called goaldirected tableaux. Their main interest lies in the fact that they are more efficient than the usual analytic tableaux (in general, they lead to less branching). They can also be used to develop an efficient tableaux-based approach to abduction. The goal-directed tableaux do not form a full decision method for propositional class...

Probably nothing makes human beings more different from other species—and from one another— than their intelligence. The subject is of profound general interest—what the brain is for and how it works, the distinctiveness of the human mind, what makes us individual and human—yet delivers so little. Human intelligence remains poorly defined and characterized, even among those who most study it. R...

The purpose of this exploratory paper is to show the consequence of applying the Copernican Revolution represented by the Critique of the Pure Reason to IS. This revolution has three important implications. First, it implicitly makes a clear distinction between the object of knowledge and the origin of knowledge. Second, it implicitly goes beyond the classical alternatives between perception an...

The year 2014 marks the centennial of events that led to the First World War ("the war to end all wars") following the assassination of Archduke Ferdinand of the crumbling Austro-Hungarian Empire. It also marks the 120th anniversary of the birth of Stephen Rothman and the 60th anniversary of the publication of his epic textbook The Physiology and Biochemistry of the Skin. In this review, we doc...

Music is more than an object of study: it is a way of perceiving the world. A tool of understanding. Today, no theorizing accomplished through language or mathematics can suffice any longer; it is incapable of accounting for what is essential in time — the qualitative and the fluid, threats and violence. In the face of the growing ambiguity of the signs being used and exchanged, the most well-e...

The ’t Hooft criterion leading to confinement out of a percolating cluster of central vortices suggests defining a novel three-dimensional gauge theory directly on a random percolation process. Wilson loop is viewed as a counter of topological linking with the random clusters. Beyond the percolation threshold large Wilson loops decay with an area law and show the universal shape effects due to ...

Cuba is a land of contradictions. People have no money, but no one goes hungry. Buildings are crumbling, yet Havana is one of the most beautiful cities in the world. It rains when the sun is shining, and the streets are full of antique cars that should have died years ago. Cubans continue to risk their lives at sea trying to reach Miami on handmade rafts, yet people on the island seem to surviv...

The marginalist revolution transformed the principles of price determination in competitive markets. Nevertheless, the systematization that accompanied neo-classical theory, especially Walras’ general equilibrium formulation, confirmed Classical economists’ belief, most powerfully articulated by Smith, that impediments to free trade should be removed. So, while the transition from the Classical...

Background / Objectives:Dermoscopy is a non-invasive technique that has been recognized recently as an effective tool in the diagnosis of nail diseases, including psoriasis. The aim this study was to clarify specific dermoscopic features psoriasis and identify those are correlated with disease severity. Methods: We conducted prospective over 18 months. Fifty patients followed for involvement we...

The purpose of this project is to discuss the astronomical development from the heliocentric theory to the geocentric theory. The main goal is to eliminate the common misconception that the Copernican system simply entails a change in the frame of reference from the Ptolemaic system. In particular, we will show how the Copernican system allows us to determine the size of the Universe (in terms ...